I started shooting a vintage Winchester 1892 .44-40 about 15 years ago, RCBS 200FN .428 cast bullets and 8 grains of Unique work very well.
Received a Rossi 92 .44-40 as a gift in 2011. The RCBS/Unique loads did not shoot to well in the Rossi, 4 inch groups at 50 yards.
Yesterday I tried a ACME .430 225 RNFP with 25.4 RL-7 and got a 10 shot 1 3/4group in one big ragged hole.
The RL-7 is a case filling load that is very accurate. You don't find it in Alliant's data, but they did list 23.5 with a 240 grain RNFP .44-40 1290 FPS / 12,100 CUP load until 2005.
E.C. Harris and John Kort have done more experimenting with 200 - 240 grain bullets in the .44-40 and .44 Magnum rifle loads. Trying RL-7 in the Rossi was based on reading about Mr. Harris' positive results. If you have a .44-40 rifle that is not shooting well you might give this a try.
